If so, then yes, because the default setting in Gossamer Mail uses the catchall account method, you don't want to have both Gossamer Mail applications checking the same catchall. You need to make sure that each one is supporting different domains and not crossing each other up. However, if you're using a different method like perhaps authenticating users off existing POP3 accounts, then you can conceivably run two Gossamer Mail applications side by side.

Sorry I was not more specific. I am setting up a dedicated server that will be shared with a handful of other sites. I wish to offer the benefits of gossamer mail to just a couple of those sites and run the rest of them with something like neomail, squirrelmail, etc. I am wondering if running two different programs would be problematic on one server and what things I need to be aware of.

I don't think that there will be much of a problem, although I must admit that we have not tried that here in house so we cannot be 100% sure. But if you're running the applications on different domains, I don't really see where there could be problems.

I am sorry for posting this in this section. But i am slightly confused. Licensing policy allows single installation (one license) and 'N' Domains depending on the version. I know that on a single server, a user would prefer to upgrade from standard one to higher instead of probably taking a second license copy.

Indeed, most of the time, upgrading the version would be the most efficient way to go about things, but when you're using different authentication methods for each application, authPOP3 versus default free signup and catchall method, you'd need two installations of Gossamer Mail.

Or if you're running a group of automotive related sites and a group of cricket related sites, you might not want the pull-down menu to display them all together but would rather keep them separate.

There are some instances where you'd want separate installations, but you're right, not many, which is why I asked the question.

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